function NodeRouteContext::getRuntimeContexts

Overrides ContextProviderInterface::getRuntimeContexts

File

core/modules/node/src/ContextProvider/NodeRouteContext.php, line 41

Class

NodeRouteContext

Sets the current node as a context on node routes.

Namespace

Code

public function getRuntimeContexts(array $unqualified_context_ids) {
    $result = [];
    $context_definition = EntityContextDefinition::create('node')->setRequired(FALSE);
    $value = NULL;
    if ($route_object = $this->routeMatch
        ->getRouteObject()) {
        $route_contexts = $route_object->getOption('parameters');
        // Check for a node revision parameter first.
        if (isset($route_contexts['node_revision']) && ($revision = $this->routeMatch
            ->getParameter('node_revision'))) {
            $value = $revision;
        }
        elseif (isset($route_contexts['node']) && ($node = $this->routeMatch
            ->getParameter('node'))) {
            $value = $node;
        }
        elseif (isset($route_contexts['node_preview']) && ($node = $this->routeMatch
            ->getParameter('node_preview'))) {
            $value = $node;
        }
        elseif ($this->routeMatch
            ->getRouteName() == 'node.add') {
            $node_type = $this->routeMatch
                ->getParameter('node_type');
            $value = Node::create([
                'type' => $node_type->id(),
            ]);
        }
    }
    $cacheability = new CacheableMetadata();
    $cacheability->setCacheContexts([
        'route',
    ]);
    $context = new Context($context_definition, $value);
    $context->addCacheableDependency($cacheability);
    $result['node'] = $context;
    return $result;
}